Lithium yttrium borate glasses doped with dysprosium ion (Dy^3 +) were synthesized by a melt-quenching technique. Glasses were studied the physical properties such as density, molar volume and refractive index. The absorption, excitation and emission spectra, including decay curve were monitored to study the luminescence properties. The X-ray induced luminescence and temperature dependence luminescence spectra was also investigated. The experimental results show that Dy^3 + probably acts as modifier in this glass because molar volume increased with increasing of Dy^3 + doped content. Glasses absorbs photon in visible light and near-infrared region with Dy^3 + transition from ⁶H_15/2 ground state. Glass performs the strongest emission at 575 nm (⁴F_9/2 → ⁶H_13/2) with 388 nm excitation wavelength. The intensity of emission increases with increasing of Dy₂O₃ concentration until 1.00 mol% after that it decreases by resonance energy transfer and cross-relaxation processes. The photoemission is white light confirmed by CIE 1931 chromaticity and UV lamp excitation. Decay curve, fitted by Inokutie-Hirayama model (S = 6), shows the non-exponential pattern which indicates a dipole-dipole interaction between Dy^3 + donor and acceptor in glass. Judd-Ofelt analysis exhibits an interesting potential for using glass as laser medium with 575 nm emitting. X-ray induced luminescence spectra perform the sharp emission band of Dy^3 + after accepted energy transfer from host glass. This is a good sign for scintillation potential. Temperature dependence luminescence spectra show the strong emission at low temperature condition. Emission intensity relates linearly with the temperature change. This Dy^3 + doped glass can be developed for using as photonic materials in the display, white-light emitting diode, laser device, scintillation detector and even temperature sensor.